def foo(x):
    return 0


def barfoo(x):
    return 0


class C:
    def foo(self, x):
        return 0

    def positional_method(self, x):
        return 0


def two_parameters(x, y):
    return 0


def three_parameters(x, y, z):
    return 0


def positional_a(x):
    return 0


def positional_b(y):
    return 0
